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Unrated severityNVD Advisory· Published Feb 27, 2025· Updated Nov 3, 2025

arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array

CVE-2025-21785

Description

In the Linux kernel, the following vulnerability has been resolved:

arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array

The loop that detects/populates cache information already has a bounds check on the array size but does not account for cache levels with separate data/instructions cache. Fix this by incrementing the index for any populated leaf (instead of any populated level).

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Affected products

274

Patches

Vulnerability mechanics

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